Prometheus: blackbox-exporter probe_http_status_code == 0 and its debug
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6 March 2019

Today I decided to upgrade Grafana to already released version 6.0 and all other Docker images as well. Upgrade was successful – Loki eventually started displaying previously missed log-file names and other tags, just – immediately I got a bunch of CRITICAL alerts in our Slack from the blackbox-exporter which is used to check every… Read More: Prometheus: blackbox-exporter probe_http_status_code == 0 and its debug0 (0) »

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Arch Linux: Steam installation
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6 March 2019

Got a new PC and want to play games here. World of Tanks already works – check the World of Tanks: installing and running on Arch Linux, and now I want to install Steam. It worked with no issues on Ubuntu a few years ago and I could play Civilization V there – so now… Read More: Arch Linux: Steam installation0 (0) »

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Linux: The VirtualBox Linux kernel driver (vboxdrv) is either not loaded or there is a permission problem with /dev/vboxdrv
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5 March 2019

After each new VirtualBox installation – I’m stepping on the same rake again and again and have to go to Google to ask: The VirtualBox Linux kernel driver (vboxdrv) is either not loaded or there is a permission problem with /dev/vboxdrv Attempt to load vboxdrv manually also provides the error: [simterm] $ sudo modprobe vboxdrv… Read More: Linux: The VirtualBox Linux kernel driver (vboxdrv) is either not… »

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Arch Linux: installation, troubleshooting and playing EVE Online
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4 March 2019

After the successful installation of WoT on my new Arch Linux setup (see the World of Tanks: installing and running on Arch Linux post) I decided to “achieve the next milestone” – install EVE Online. On a Google search by the “EVE Online Linux” request, I found the wiki.eveuniversity.org guide and tried to use it… Read More: Arch Linux: installation, troubleshooting and playing EVE Online0 (0) »

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Android Studio: adb – INSTALL_FAILED_INSUFFICIENT_STORAGE
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4 March 2019

Proceeding fighting with our UI auto-tests 🙂 Two previous posts were really useful this time – Android Studio: установка на Linux и работа с Android Virtual Devices and Appium: Android Virtual Device, Original error: Condition unmet after 60159 ms и костыль. In general – tests works fine but sometimes gives me interesting issues. This time… Read More: Android Studio: adb – INSTALL_FAILED_INSUFFICIENT_STORAGE0 (0) »

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Linux: woeusb – creating Windows USB boot flash drive
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4 March 2019

Well – sometimes have to do a bit weird things… Need to create bootable USB flash drive with WIndows 10 using console on Linux. There are various solutions but today I found the woeusb utility and it works pretty well plus it can format a drive to a necessary filesystem. Intsall on Arch Linux from… Read More: Linux: woeusb – creating Windows USB boot flash drive0 (0) »

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Python: what is the if __name__ == “__main__” ?
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3 March 2019
Python

In many Python modules you can find construction like: if __name__ == “__main__”: func() Its main purpose is to dedicate a code which will be executed during calling code as a module, after importing it into another code – and when running module itself as a dedicated script. Let’s take a look at a couple… Read More: Python: what is the if __name__ == “__main__” ?0 (0) »

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MySQL/MariaDB: most used commands with examples
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3 March 2019

Please note – this is absolutely not a complete guide about all MySQL commands usage – but just examples of the most commonly used ones. mysql> at the begin of the line means it’s executed from the MySQL console. Symbols # or $ means it’s executed from the Linux shell. UPD 03.03.2019 This post originally… Read More: MySQL/MariaDB: most used commands with examples0 (0) »

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Arch Linux: OpenVPN – resolv.conf is not updated
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2 March 2019

On an Arch Linux setup – local resolv.conf not updated after connection to OpenVPN AS. As far as I know – the problem is specific to Arch Linux and its “child’s” like Manjaro Linux installations. Local openvpn installed via pacman – see the OpenVPN: OpenVPN Access Server set up and AWS VPC peering configuration post for… Read More: Arch Linux: OpenVPN – resolv.conf is not updated0 (0) »

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